C-first · source page1
Complete original fictional display-ledge diagram account. Drawn labelled bases M and N use a printed centimetre scale from zero with equal1cm intervals. M spans0–3cm; N spans0–5cm. Those are supplied diagram readings, not dimensions of real rocks or the child’s own ruler measurements. The diagram records no prior prediction. Its display-reader job is to compare these two drawn bases accurately. A separate new plain-paper measuring plan could ask which chosen paper base is longer, use a familiar centimetre ruler with zero aligned and the same base direction, and keep an actual prediction before its own measurement. No new paper result is supplied.
C-first · question page2 of5
1. Compare the two supplied drawn base lengths with their unit and a real-object limit.
Paper stays yours; no digital action erases it.
C-first · question page3 of5
2. Is a before-measurement prediction supplied here? Explain using the account.
Paper stays yours; no digital action erases it.
C-first · question page4 of5
3. Make two matching record rows for M and N with supplied base length and source/unit.
Paper stays yours; no digital action erases it.
C-first · question page5 of5
4. With guidance, propose one suitable ruler-reading step for the separate new paper plan and keep its result open.
Paper stays yours; no digital action erases it.